How to control the camera

Well, i want to have full control of the camera, including view frustrum, transformation and stuff, but i cant seem to get a customized camera to be the "game camera", i m developing extending BaseGame class, can someone please help me? An example of creating, setting the parameters and setting the camera as the "game camera"(i dont know a better name) would be welcome.

Thx  }:-@

http://code.google.com/p/jmonkeyengine/source/browse/trunk/src/com/jmex/game/state/CameraGameState.java



CameraGameState is a GameState which maintains its own Camera.

To activate the camera it calls:

DisplaySystem.getDisplaySystem().getRenderer().setCamera(cam);

Worked, thx for the help